std::type_info::before

bool before( const type_info& rhs ) const;

Returns true if the type of this type_info precedes the type of rhs in the implementation's collation order. No guarantees are given; in particular, the collation order can change between the invocations of the same program.

Parameters

Return value

true if the type of this type_info precedes the type of rhs in the implementation's collation order.

Example

#include <iostream>
#include <typeinfo>
 
int main()
{
  if(typeid(int).before(typeid(char)))
    std::cout << "int goes before char in this implementation.\n";
  else
    std::cout << "char goes before int in this implementation.\n";
}

char goes before int in this implementation.

See also